linux-kernel - Re: [PATCH 1/2] spi: rspi: Fix leaking of unused DMA descriptors

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Message-ID: <CAMuHMdX4bDMogeSwmd3bxm_fKpjouxZJFT_dd5ErxgJkZ2U=cA@mail.gmail.com>
Date:	Tue, 5 Aug 2014 16:34:40 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Mark Brown <broonie@...nel.org>
Cc:	Geert Uytterhoeven <geert+renesas@...der.be>,
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
	linux-spi <linux-spi@...r.kernel.org>, dmaengine@...r.kernel.org,
	Linux-sh list <linux-sh@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] spi: rspi: Fix leaking of unused DMA descriptors

Hi Mark,

On Mon, Jul 14, 2014 at 8:58 PM, Mark Brown <broonie@...nel.org> wrote:
> On Fri, Jul 11, 2014 at 06:06:41PM +0200, Geert Uytterhoeven wrote:
>> If dmaengine_prep_slave_sg() or dmaengine_submit() fail, we may leak
>> unused DMA descriptors.
>
> This doesn't apply, I guess it may depend on some of your other DMA
> related patches but it's not immediately obvious and it's not been sent
> as part of a series.  Can you please check and/or clarify?

Indeed, this (and the rspi one) depended on the two "Handle
dmaengine_prep_slave_single() failures gracefully" patches.

Unless you recover them from e.g. patchwork, I'll resend them with my
next batch.

Sorry for the fuzz.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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